56718490 has 16 divisors (see below), whose sum is σ = 105614280. Its totient is φ = 21904960.

The previous prime is 56718481. The next prime is 56718503. The reversal of 56718490 is 9481765.

56718490 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 53187849 + 3530641 = 7293^2 + 1879^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 97501 + ... + 98080.

Almost surely, 2^56718490 is an apocalyptic number.

56718490 is a deficient number, since it is larger than the sum of its proper divisors (48895790).

56718490 is a wasteful number, since it uses less digits than its factorization.

56718490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195617.

The product of its (nonzero) digits is 60480, while the sum is 40.

The square root of 56718490 is about 7531.1679041169. The cubic root of 56718490 is about 384.2155049379.

It can be divided in two parts, 5671 and 8490, that added together give a square (14161 = 119²).

The spelling of 56718490 in words is "fifty-six million, seven hundred eighteen thousand, four hundred ninety".